Ford Mustang Owners Manual: Fuel consumption

The advertised capacity is the indicated capacity and the empty reserve combined.
Indicated capacity is the difference in the amount of fuel in a full tank and a
tank when the fuel gauge indicates empty. Empty reserve is the amount of fuel in
the tank after the fuel gauge indicates empty.

Note

: The amount of usable fuel in the empty reserve varies and should
not be relied upon to increase driving range. When refueling your vehicle after
the fuel gauge indicates empty, you might not be able to refuel the full amount
of the advertised capacity of the fuel tank due to the empty reserve still present
in the tank.

For consistent results when filling the fuel tank:

• Turn the ignition off before fueling; an inaccurate reading results if the
engine is left running.

• Use the same fill rate (low–medium–high) each time the tank is filled.

• Allow no more than two automatic click–offs when filling.

Results are most accurate when the filling method is consistent.

Calculating Fuel Economy

Do not measure fuel economy during the first 1000 miles (1600 kilometers) of
driving (this is your engine’s break-in period); a more accurate measurement is
obtained after 2000 miles–3000 miles (3200 kilometers–4800 kilometers). Also, fuel
expense, frequency of fill-ups or fuel gauge readings are not accurate ways to measure
fuel economy.

1. Fill the fuel tank completely and record the initial odometer reading.

2. Each time you fill the tank, record the amount of fuel added.

3. After at least three to five tank fill-ups, fill the fuel tank and record the
current odometer reading.

Metric: Multiply liters used by 100, then divide by kilometers traveled.

Keep a record for at least one month and record the type of driving (city or
highway). This provides an accurate estimate of the vehicle’s fuel economy under
current driving conditions. Additionally, keeping records during summer and winter
show how temperature impacts fuel economy.

Removal
Removal
WARNING: Do not smoke, carry lighted tobacco or an open flame of any
type when
working on or near any fuel-related components. Highly flammable mixtures are
always present
and may be ignited, possibly resulting in personal injury.
WARNING: Fuel suppl ...